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[Peter Funk <pf@xxxxxxxxxxxxxx>]

Question:  How can I apply "gsettings set org.gnome.Vino require-
encryption false" in a ssh-session from remote?

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https://bugs.launchpad.net/bugs/1281250

Title:
  VNC accessible from non-linux machines only with encryption disabled

Status in vino:
  Confirmed
Status in vino package in Ubuntu:
  Triaged
Status in vino source package in Trusty:
  Triaged
Status in vino package in Fedora:
  Unknown

Bug description:
  Since a recent update, it is impossible to connect to my Ubuntu box
  using VNC from a Windows machine unless I disable encryption on the
  vino server.

  I tested up-to-date tightVNC client and TigerVNC client on the Windows
  machine, with the same result. As soon I try to connect, I receive the
  following error:

  [ 5872/ 6448] 2014-01-20 12:11:18:247   List of security type is read
  [ 5872/ 6448] 2014-01-20 12:11:18:247 : Security Types received (1): Unknown type (18)
  [ 5872/ 6448] 2014-01-20 12:11:18:247   Selecting auth-handler
  [ 5872/ 6448] 2014-01-20 12:11:18:247 + RemoteViewerCore. Exception: No security types supported. Server sent security types, but we do not support any of their.

  So it seems that the update changed the security type of vino to a new
  one. I searched for a way to go back to the old one (until the clients
  catches up) with no avail.

  A solution is disabling the encryption completely, by

  gsettings set org.gnome.Vino require-encryption false

  ...but this is subotpimal. Is there a way to switch the encryption
  back to the old one?

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